We don't need another ($) though, and writing things backwards looks funny. :)
- Cale
On 19/11/05, Bulat Ziganshin
Hello haskell-cafe,
if we will define "." as:
a.b = b a
then we can use "." for
1) field selection
2) sequential functions application in OOP style:
[1..100] .map (2*) .sum
3) qualified identifiers - if we treat module name as the record containing all its exported functions:
"import M (f,g,h)" defines record M with fields f, g and h
The only problem is priority of this operation - for field selection it need to be greater than for application:
infixl 11 .
while for OOP-styled operations with arguments - its priority must be minimal. one possible solution is rather revolitionary: raise priority of "." if there is no spaces around it, so the following will be interpreted precisely as we want:
record.field .List.map (2*) .sum
-- Best regards, Bulat mailto:bulatz@HotPOP.com
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